The New York Times recently released data on a self-reported mask in the United States. The data comes from interviews conducted online at the request of The Times by global data and survey firm Dynata. Dynata collected about 250,000 responses to the survey between July 2 and July 14, and estimates were produced for the county level.
Each participant was asked “How often do you wear a mask in public when you expect to be within six feet of another person?”; Possible answers were “Always,” “Often,” “Sometimes,” “Rare” and “Never.”
Government Roy Cooper issued an executive order that came into force on June 26 requiring NC residents to wear masks in public.
This is the methodology used to transform raw survey responses into county-level estimates, according to The Times: “Survey data were weighted by age and gender, and Survey participants ’locations were approximated by their zip codes. Mask wear estimates were then made for each census passage by taking a weighted average of the 200 closest answers, with closer reactions gaining more weight on average. These passage-level estimates were then rolled to county level according to the total population of each passage. “